AFNI requires the NIFTI header to correctly specify the dataset is in a standard space with the sform_code or the qform_code. Setting the space with 3drefit is sufficient to update the header of the NIFTI dataset with the correct codes and for AFNI to display the dataset with other MNI, Talairach or other "standard space" datasets. The view option is mostly for AFNI datasets to force the view to be either "orig" or "tlrc". There is no "mni" or "MNI" option for view. As with all AFNI commands, the options are probably best described in the command line help for the command, 3drefit -help.
3drefit -space MNI 65template_mni.nii myMNIdset.nii
3dresample, 3dAllineate, 3dWarp, 3dQwarp, 3dNwarpApply and other commands that take -master will use the space of that dataset for the output.
Converting between Talairach and MNI spaces has been addressed multiple on the message board. Take a look at one of these previous posts:
Note, as in that post, neither Talairach space nor MNI space is very specific to a particular template. Furthermore, that 3dWarp -tta2mni is just an approximation that is mostly outdated by the other methods. It seems if you want a high resolution output in MNI space, consider a high resolution MNI template as the target to begin with.